Breadcrumb Home News August 20, 2004 02:00 AM RPN photo by Bruce MeyerGeneral Motor Corp.'s Dave Cowger explains use of the firm's machine to test tire rolling resistance at its Proving Ground in Milford, Mich. Tweet Share Share Email More Print Letter to the Editor Rubber & Plastics News wants to hear from its readers. If you want to express your opinion on a story or issue, email your letter to Editor Bruce Meyer at [email protected]. SIGN UP FOR FREE NEWSLETTERS Daily Newsmail (Weekdays) Breaking News (as Needed) Rubber in Automotive (Weekly) Silicone News (Bi-Weekly) Latex News (Monthly) Most Read Stories (Weekly) EMAIL ADDRESS Please enter a valid email address. Please enter your email address. Please select at least one newsletter to subscribe. View the discussion thread.